feat: 재고 분석 페이지 - 재고 변화 추이 그래프 추가

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thug0bin 2026-03-13 08:02:44 +09:00
parent c9f89cb9b0
commit 2ca35cdc82
2 changed files with 443 additions and 0 deletions

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@ -10028,6 +10028,178 @@ def api_search_drugs():
return jsonify({'success': False, 'error': str(e)}), 500
@app.route('/api/stock-analytics/forecast')
def api_stock_forecast():
"""
재고 소진 예측 API
GET /api/stock-analytics/forecast?drug_code=A123456789
계산 로직:
1. 최근 30 출고량 조회 (IM_date_total에서 credit 합계)
2. 평균 일일 출고량 = 출고량 / 실제 데이터 일수
3. 예상 소진일 = 현재재고 / 평균출고량
4. 소진 예상일 = 오늘 + 예상소진일
5. 발주 권장일 = 소진예상일 - 3 (리드타임)
6. confidence: 데이터 많으면 high, 적으면 low
7. trend: 최근 7 vs 이전 23 비교 increasing/stable/decreasing
"""
conn = None
try:
drug_code = request.args.get('drug_code', '').strip()
if not drug_code:
return jsonify({'success': False, 'error': '약품코드가 필요합니다'}), 400
# pyodbc 직접 연결 (기존 daily-trend API와 동일 방식)
import pyodbc
conn_str = (
'DRIVER={ODBC Driver 17 for SQL Server};'
'SERVER=192.168.0.4\\PM2014;'
'DATABASE=PM_DRUG;'
'UID=sa;'
'PWD=tmddls214!%(;'
'TrustServerCertificate=yes'
)
conn = pyodbc.connect(conn_str, timeout=10)
cursor = conn.cursor()
# 1. 약품 정보 및 현재 재고 조회
cursor.execute("""
SELECT
G.GoodsName as product_name,
ISNULL(IT.IM_QT_sale_debit, 0) as current_stock
FROM CD_GOODS G
LEFT JOIN IM_total IT ON G.DrugCode = IT.DrugCode
WHERE G.DrugCode = ?
""", (drug_code,))
info_row = cursor.fetchone()
if not info_row:
conn.close()
return jsonify({'success': False, 'error': '해당 약품을 찾을 수 없습니다'}), 404
product_name = info_row.product_name or ''
current_stock = int(info_row.current_stock or 0)
# 2. 최근 30일 출고 데이터 조회
today = datetime.now(KST).date()
thirty_days_ago = today - timedelta(days=30)
cursor.execute("""
SELECT
IM_DT_appl as date,
ISNULL(IM_QT_sale_credit, 0) as outbound_qty
FROM IM_date_total
WHERE DrugCode = ?
AND IM_DT_appl >= ?
AND IM_DT_appl <= ?
ORDER BY IM_DT_appl
""", (drug_code, thirty_days_ago.strftime('%Y%m%d'), today.strftime('%Y%m%d')))
rows = cursor.fetchall()
conn.close()
# 3. 데이터 처리
if not rows:
# 출고 데이터 없음
return jsonify({
'success': True,
'drug_code': drug_code,
'product_name': product_name,
'current_stock': current_stock,
'avg_daily_outbound': 0,
'days_until_empty': None,
'estimated_empty_date': None,
'recommended_order_date': None,
'confidence': 'none',
'trend': 'unknown',
'message': '최근 30일 출고 데이터가 없습니다'
})
# 일별 출고량 집계
daily_outbound = {}
for row in rows:
date_str = str(row.date)
daily_outbound[date_str] = int(row.outbound_qty or 0)
# 총 출고량 및 평균 계산
total_outbound = sum(daily_outbound.values())
data_days = len(daily_outbound)
avg_daily_outbound = total_outbound / data_days if data_days > 0 else 0
# 4. 예상 소진일 계산
if avg_daily_outbound > 0:
days_until_empty = int(current_stock / avg_daily_outbound)
estimated_empty_date = today + timedelta(days=days_until_empty)
# 발주 권장일 (소진 3일 전, 리드타임 고려)
recommended_order_date = estimated_empty_date - timedelta(days=3)
if recommended_order_date < today:
recommended_order_date = today # 이미 지난 경우 오늘로
else:
days_until_empty = None
estimated_empty_date = None
recommended_order_date = None
# 5. 신뢰도 계산 (데이터 일수 기준)
if data_days >= 20:
confidence = 'high'
elif data_days >= 10:
confidence = 'medium'
else:
confidence = 'low'
# 6. 추세 분석 (최근 7일 vs 이전 23일)
recent_7_days = []
earlier_days = []
sorted_dates = sorted(daily_outbound.keys(), reverse=True)
for i, date_key in enumerate(sorted_dates):
if i < 7:
recent_7_days.append(daily_outbound[date_key])
else:
earlier_days.append(daily_outbound[date_key])
if len(recent_7_days) >= 3 and len(earlier_days) >= 5:
recent_avg = sum(recent_7_days) / len(recent_7_days)
earlier_avg = sum(earlier_days) / len(earlier_days)
if earlier_avg > 0:
change_ratio = (recent_avg - earlier_avg) / earlier_avg
if change_ratio > 0.15: # 15% 이상 증가
trend = 'increasing'
elif change_ratio < -0.15: # 15% 이상 감소
trend = 'decreasing'
else:
trend = 'stable'
else:
trend = 'stable' if recent_avg == 0 else 'increasing'
else:
trend = 'unknown'
return jsonify({
'success': True,
'drug_code': drug_code,
'product_name': product_name,
'current_stock': current_stock,
'avg_daily_outbound': round(avg_daily_outbound, 2),
'days_until_empty': days_until_empty,
'estimated_empty_date': estimated_empty_date.strftime('%Y-%m-%d') if estimated_empty_date else None,
'recommended_order_date': recommended_order_date.strftime('%Y-%m-%d') if recommended_order_date else None,
'confidence': confidence,
'trend': trend,
'data_days': data_days
})
except Exception as e:
if conn:
conn.close()
logging.error(f"stock-forecast API 오류: {e}")
import traceback
traceback.print_exc()
return jsonify({'success': False, 'error': str(e)}), 500
if __name__ == '__main__':
import os

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@ -430,6 +430,138 @@
.toast.success { border-color: var(--accent-emerald); }
.toast.error { border-color: var(--accent-rose); }
/* ══════════════════ 예측 카드 ══════════════════ */
.forecast-card {
background: var(--bg-card);
border-radius: 14px;
padding: 20px;
border: 1px solid var(--border);
height: 100%;
}
.forecast-header {
display: flex;
align-items: center;
gap: 8px;
margin-bottom: 16px;
padding-bottom: 12px;
border-bottom: 1px solid var(--border);
}
.forecast-title {
font-size: 15px;
font-weight: 600;
}
.forecast-row {
display: flex;
justify-content: space-between;
align-items: center;
padding: 8px 0;
}
.forecast-label {
font-size: 13px;
color: var(--text-secondary);
}
.forecast-value {
font-family: 'JetBrains Mono', monospace;
font-size: 14px;
font-weight: 600;
}
.forecast-divider {
border: none;
border-top: 1px dashed var(--border);
margin: 12px 0;
}
.forecast-highlight {
background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(124, 58, 237, 0.1));
border-radius: 10px;
padding: 14px;
margin: 12px 0;
}
.forecast-highlight-row {
display: flex;
align-items: center;
gap: 8px;
margin-bottom: 6px;
}
.forecast-highlight-row:last-child {
margin-bottom: 0;
}
.forecast-highlight-icon {
font-size: 16px;
}
.forecast-highlight-label {
font-size: 12px;
color: var(--text-secondary);
flex: 1;
}
.forecast-highlight-value {
font-family: 'JetBrains Mono', monospace;
font-size: 14px;
font-weight: 700;
color: var(--accent-purple);
}
.forecast-highlight-sub {
font-size: 11px;
color: var(--text-muted);
margin-left: 4px;
font-weight: 400;
}
.forecast-meta {
display: flex;
justify-content: space-between;
padding-top: 12px;
border-top: 1px solid var(--border);
}
.forecast-tag {
display: inline-flex;
align-items: center;
gap: 4px;
padding: 4px 10px;
border-radius: 12px;
font-size: 11px;
font-weight: 600;
}
.forecast-tag.trend-increasing {
background: rgba(239, 68, 68, 0.15);
color: #f87171;
}
.forecast-tag.trend-stable {
background: rgba(16, 185, 129, 0.15);
color: #34d399;
}
.forecast-tag.trend-decreasing {
background: rgba(59, 130, 246, 0.15);
color: #60a5fa;
}
.forecast-tag.trend-unknown {
background: rgba(100, 116, 139, 0.15);
color: #94a3b8;
}
.forecast-tag.confidence-high {
background: rgba(16, 185, 129, 0.15);
color: #34d399;
}
.forecast-tag.confidence-medium {
background: rgba(245, 158, 11, 0.15);
color: #fbbf24;
}
.forecast-tag.confidence-low {
background: rgba(239, 68, 68, 0.15);
color: #f87171;
}
.forecast-tag.confidence-none {
background: rgba(100, 116, 139, 0.15);
color: #94a3b8;
}
.forecast-empty {
text-align: center;
padding: 40px 20px;
color: var(--text-muted);
}
.forecast-empty-icon {
font-size: 36px;
margin-bottom: 12px;
}
/* ══════════════════ 반응형 ══════════════════ */
@media (max-width: 1200px) {
.chart-grid { grid-template-columns: 1fr; }
@ -553,6 +685,16 @@
</div>
</div>
</div>
<!-- 재고 소진 예측 카드 -->
<div class="chart-card">
<div id="forecastContainer">
<div class="forecast-empty">
<div class="forecast-empty-icon">🔮</div>
<div>약품을 선택하면 소진 예측을 표시합니다</div>
</div>
</div>
</div>
</div>
<!-- TOP 10 테이블 -->
@ -676,6 +818,8 @@
// 재고 변화 차트 로드
loadStockLevel();
// 재고 소진 예측 로드
loadForecast();
// 일별 추이도 해당 약품으로 갱신
loadDailyTrend();
}
@ -692,6 +836,13 @@
<div>약품을 검색하여 선택하세요</div>
</div>`;
// 예측 카드 초기화
document.getElementById('forecastContainer').innerHTML = `
<div class="forecast-empty">
<div class="forecast-empty-icon">🔮</div>
<div>약품을 선택하면 소진 예측을 표시합니다</div>
</div>`;
if (stockLevelChart) {
stockLevelChart.destroy();
stockLevelChart = null;
@ -783,6 +934,126 @@
}
}
// ══════════════════ 재고 소진 예측 ══════════════════
async function loadForecast() {
if (!selectedDrugCode) return;
const container = document.getElementById('forecastContainer');
container.innerHTML = `
<div class="forecast-empty">
<div class="loading-spinner"></div>
<div>예측 데이터 로딩 중...</div>
</div>`;
try {
const response = await fetch(`/api/stock-analytics/forecast?drug_code=${selectedDrugCode}`);
const data = await response.json();
if (data.success) {
renderForecastCard(data);
} else {
container.innerHTML = `
<div class="forecast-empty">
<div class="forecast-empty-icon">⚠️</div>
<div>${data.error || '예측 데이터를 불러올 수 없습니다'}</div>
</div>`;
}
} catch (err) {
console.error('예측 로드 실패:', err);
container.innerHTML = `
<div class="forecast-empty">
<div class="forecast-empty-icon"></div>
<div>예측 로드 실패</div>
</div>`;
}
}
function renderForecastCard(data) {
const container = document.getElementById('forecastContainer');
// 추세 표시
const trendMap = {
'increasing': { label: '증가 추세', icon: '📈', class: 'trend-increasing' },
'stable': { label: '안정적', icon: '➡️', class: 'trend-stable' },
'decreasing': { label: '감소 추세', icon: '📉', class: 'trend-decreasing' },
'unknown': { label: '분석 불가', icon: '❓', class: 'trend-unknown' }
};
const trend = trendMap[data.trend] || trendMap['unknown'];
// 신뢰도 표시
const confidenceMap = {
'high': { label: '높음', icon: '✅', class: 'confidence-high' },
'medium': { label: '보통', icon: '⚠️', class: 'confidence-medium' },
'low': { label: '낮음', icon: '❗', class: 'confidence-low' },
'none': { label: '없음', icon: '❌', class: 'confidence-none' }
};
const confidence = confidenceMap[data.confidence] || confidenceMap['none'];
// 데이터 없는 경우
if (data.confidence === 'none' || !data.days_until_empty) {
container.innerHTML = `
<div class="forecast-card">
<div class="forecast-header">
<span>🔮</span>
<span class="forecast-title">재고 소진 예측</span>
</div>
<div class="forecast-row">
<span class="forecast-label">현재 재고</span>
<span class="forecast-value" style="color: var(--accent-emerald);">${data.current_stock.toLocaleString()}개</span>
</div>
<hr class="forecast-divider">
<div class="forecast-empty" style="padding: 20px;">
<div class="forecast-empty-icon">📊</div>
<div>${data.message || '출고 데이터가 없어 예측할 수 없습니다'}</div>
</div>
</div>`;
return;
}
// 소진 예상일까지 남은 일수 색상
let daysColor = 'var(--accent-emerald)';
if (data.days_until_empty <= 7) {
daysColor = 'var(--accent-rose)';
} else if (data.days_until_empty <= 14) {
daysColor = 'var(--accent-amber)';
}
container.innerHTML = `
<div class="forecast-card">
<div class="forecast-header">
<span>🔮</span>
<span class="forecast-title">재고 소진 예측</span>
</div>
<div class="forecast-row">
<span class="forecast-label">현재 재고</span>
<span class="forecast-value" style="color: var(--accent-emerald);">${data.current_stock.toLocaleString()}개</span>
</div>
<div class="forecast-row">
<span class="forecast-label">평균 일일 출고</span>
<span class="forecast-value" style="color: var(--accent-blue);">${data.avg_daily_outbound}개</span>
</div>
<div class="forecast-highlight">
<div class="forecast-highlight-row">
<span class="forecast-highlight-icon">🗓️</span>
<span class="forecast-highlight-label">예상 소진일</span>
<span class="forecast-highlight-value">${data.estimated_empty_date}<span class="forecast-highlight-sub">(${data.days_until_empty}일 후)</span></span>
</div>
<div class="forecast-highlight-row">
<span class="forecast-highlight-icon">🛒</span>
<span class="forecast-highlight-label">발주 권장일</span>
<span class="forecast-highlight-value" style="color: ${daysColor};">${data.recommended_order_date}</span>
</div>
</div>
<div class="forecast-meta">
<span class="forecast-tag ${trend.class}">${trend.icon} ${trend.label}</span>
<span class="forecast-tag ${confidence.class}">${confidence.icon} 신뢰도: ${confidence.label}</span>
</div>
</div>`;
}
// ══════════════════ 차트 렌더링 ══════════════════
function renderDailyTrendChart(items) {
const ctx = document.getElementById('dailyTrendChart').getContext('2d');